obspy.core.stream.Stream.write

Stream.write(filename, format=None, **kwargs)

Save stream into a file.

Parameters

• filename (str) – The name of the file to write.

• format (str, optional) – The file format to use (e.g. "MSEED"). See the Supported Formats section below for a list of supported formats. If format is set to None it will be deduced from file extension, whenever possible.

• kwargs – Additional keyword arguments passed to the underlying waveform writer method.

Example

>>> from obspy import read
>>> st = read()  
>>> st.write("example.mseed", format="MSEED")  

The format argument can be omitted, and the file format will be deduced from file extension, whenever possible.

>>> st.write("example.mseed")  

Writing single traces into files with meaningful filenames can be done e.g. using trace.id

>>> for tr in st: 
...     tr.write(tr.id + ".MSEED", format="MSEED") 

Supported Formats

Additional ObsPy modules extend the parameters of the write() method. The following table summarizes all known formats currently available for ObsPy.

Please refer to the Linked Function Call of each module for any extra options available.

Format	Used Module	Linked Function Call
AH	obspy.io.ah	obspy.io.ah.core._write_ah1()
GSE2	obspy.io.gse2	obspy.io.gse2.core._write_gse2()
MSEED	obspy.io.mseed	obspy.io.mseed.core._write_mseed()
PICKLE	obspy.core.stream	obspy.core.stream._write_pickle()
Q	obspy.io.sh	obspy.io.sh.core._write_q()
SAC	obspy.io.sac	obspy.io.sac.core._write_sac()
SACXY	obspy.io.sac	obspy.io.sac.core._write_sac_xy()
SEGY	obspy.io.segy	obspy.io.segy.core._write_segy()
SH_ASC	obspy.io.sh	obspy.io.sh.core._write_asc()
SLIST	obspy.io.ascii	obspy.io.ascii.core._write_slist()
SU	obspy.io.segy	obspy.io.segy.core._write_su()
TSPAIR	obspy.io.ascii	obspy.io.ascii.core._write_tspair()
WAV	obspy.io.wav	obspy.io.wav.core._write_wav()